GB2168270A - A rotary tool shank - Google Patents

A rotary tool shank Download PDF

Info

Publication number
GB2168270A
GB2168270A GB08529840A GB8529840A GB2168270A GB 2168270 A GB2168270 A GB 2168270A GB 08529840 A GB08529840 A GB 08529840A GB 8529840 A GB8529840 A GB 8529840A GB 2168270 A GB2168270 A GB 2168270A
Authority
GB
United Kingdom
Prior art keywords
tool
shank
flat portion
rotary
receiver
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08529840A
Other versions
GB2168270B (en
GB8529840D0 (en
Inventor
John Anthony Phillips
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dom Holdings PLC
Original Assignee
Dom Holdings PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dom Holdings PLC filed Critical Dom Holdings PLC
Publication of GB8529840D0 publication Critical patent/GB8529840D0/en
Publication of GB2168270A publication Critical patent/GB2168270A/en
Application granted granted Critical
Publication of GB2168270B publication Critical patent/GB2168270B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/005—Cylindrical shanks of tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
    • B23B2231/0256—Flats
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/907—Tool or Tool with support including detailed shank

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Description

G13 2 168 270 A 1
SPECIFICATION Tool
The invention relates to a tool, particularly a tool 5for insertion in the tool receiver of a rotary percussive or rotary machine, such as a drilling machine.
According to one aspect of the invenfion there is 60 provided a tool for insertion in the tool receiver of a 10 rotary percussive or rotary machine, comprising a shank having a boundary surface including a curved portion and a flat portion, the arrangement being such that the flat portion is arranged to be 65 drivingly engaged by driving means of the tool 15 receiver in use, There may be two flat portions which may be substantially parallel and on opposite sides of the longitudinal axis of the shank.
The or each flat portion may extend over a part 20 of the shank between the two ends thereof.
Alternatively, the or each flat portion may extend from the free end of the shank to a position intermediate the length thereof.
According to a second aspect of the invention 25 there is provided apparatus comprising a tool as hereinbefore defined and a rotary percussive or rotary machine, the tool being received by the tool receiver thereof with driving means of the tool receiver in driving engagement with the or each flat 30 portion for transferring rotary drive from the machine to the tool.
Tools embodying the invention are hereinafter described, by way of example, with reference to the 85 accompanying drawings.
Brief Description of Drawings
Fig. 1 is a side elevation of the tool according to the invention; Fig. 2 is a transverse sectional view on line A-A 40 of Fig. 1, showing two alternative constructions, and Fig. 3 is a transverse sectional view through a shank of an alternative embodiment of tool 95 according to the invention.
Referring to the drawings, in which like parts are referred to by the reference numerals, the tool 1 shown is a drill which has a generally cylindrical shank 2 for insertion in a tool receiver or holder of 100 a rotary percussive or rotary machine such as a 50 drilling machine (not shown). The shank 2 has a curved surface portion 3 and a flat surface portion 4 of rectangular configuration, the flat surface portion 4 lying between the ends of the shank (Fig. 2).
Fig. 3 shows an alternative construction in which there are two flat portions 4 and 5 lying on opposite sides of the longitudinal axis of the shank.
When the shank 1 is inserted in a tool receiver of a rotary percussive machine (not shown), driving elements thereof engage and act on the or each flat surface 4 and/or 5 to provide driving torque to the tool, which is thereby rotated.
This construction provides in both embodiments a relatively simple yet efficient arrangement which does not require precision grinding or milling of splines, grooves etc. and allows a direct driving contact between the tool and driving elements of the tool receiver on insertion of the tool in the receiver.
The shank 1 may include grooves (not shown) for receiving retaining elements of the receiver.

Claims (7)

1. A tool for insertion in the tool receiver of a rotary percussive or rotary machine, comprising a shank having a boundary surface including a curved portion and a flat portion, the arrangement being such that the flat portion is arranged to be drivingly engaged by driving means of the tool receiver in use.
2. A tool according to Claim 1, in which there are two flat portions which are substantially parallel and on opposite sides of the longitudinal axis of the shank.
3. A tool according to Claim 1 or Claim 2, the or each flat portion extending over a part of the shank between the two ends thereof.
4. A tool according to Claim 1 or Claim 2, the or each flat portion extending from the free end of the shank to a position intermediate the length thereof.
5. A tool according to any preceding Claim, the or each flat portion being rectangular in configuration.
6. A tool for insertion in the tool receiver of a rotary percussive or rotary machine, substantially as hereinbefore described with reference to the accompanying drawings.
7. Apparatus comprising a tool according to any preceding Claim, and a rotary percussive or rotary machine, the tool being received by the tool receiver thereof with driving means of the tool receiver in driving engagement with the or each flat portion for transferring rotary drive from the machine to the tool.
Printed for Her Majesty's Stationery Office by Courier Press, Leamington Spa. 6/1986. Demand No. 8817356.
Published by the Patent Office, 25 Southampton Buildings, London, WC2A 1AY, from which copies may be obtained.
GB08529840A 1984-12-07 1985-12-04 Tool Expired GB2168270B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB848431027A GB8431027D0 (en) 1984-12-07 1984-12-07 Tool

Publications (3)

Publication Number Publication Date
GB8529840D0 GB8529840D0 (en) 1986-01-15
GB2168270A true GB2168270A (en) 1986-06-18
GB2168270B GB2168270B (en) 1988-11-09

Family

ID=10570883

Family Applications (2)

Application Number Title Priority Date Filing Date
GB848431027A Pending GB8431027D0 (en) 1984-12-07 1984-12-07 Tool
GB08529840A Expired GB2168270B (en) 1984-12-07 1985-12-04 Tool

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB848431027A Pending GB8431027D0 (en) 1984-12-07 1984-12-07 Tool

Country Status (11)

Country Link
US (1) US4920837A (en)
EP (1) EP0188083A1 (en)
CA (1) CA1263107A (en)
DK (1) DK558485A (en)
ES (1) ES297055Y (en)
FI (1) FI854824A (en)
GB (2) GB8431027D0 (en)
GR (1) GR852941B (en)
NO (1) NO854932L (en)
PT (1) PT81617B (en)
ZA (1) ZA859294B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2617753A1 (en) * 1987-07-07 1989-01-13 Stahl Joseph Multiple-use wood drill bit for experienced professionals and DIY enthusiasts

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4141915C2 (en) * 1991-12-18 1995-08-31 Sfs Ind Holding Ag Self-drilling blind rivet
WO2002064295A2 (en) * 2001-02-09 2002-08-22 Maxtech Manufacturing Inc. Irregular-shank tools and drivers therefor
US20070297867A1 (en) * 2005-02-22 2007-12-27 Weiler Donald R Pilot Drill with Pilot Drill and Coupon Retainers and Hot Tapping Machine Using the Same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB812529A (en) * 1957-08-19 1959-04-29 Malcolm Wicks Fraser Improvements relating to rotary tool-holding chucks
GB1127474A (en) * 1967-03-22 1968-09-18 Erickson Tool Co Improvements in or relating to chucks
GB1448378A (en) * 1972-12-26 1976-09-08 Montabert Ets Tool-holding assemblies
GB1536738A (en) * 1975-11-14 1978-12-20 Bosch Gmbh Robert Rotary percussive apparatus
GB1566340A (en) * 1976-05-15 1980-04-30 Hawera Probst Kg Hartmetall Rotary percussion drilling devices
GB1587885A (en) * 1976-09-10 1981-04-08 Bosch Gmbh Robert Rotary tool holder
GB2096045A (en) * 1981-04-03 1982-10-13 Bosch Gmbh Robert A tool holder

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2047125A (en) * 1934-08-24 1936-07-07 Sullivan Machinery Co Rock drill
US2677562A (en) * 1949-05-31 1954-05-04 Inland Steel Co Impact wrench
US3123156A (en) * 1959-04-16 1964-03-03 gapstur
US3289290A (en) * 1963-03-14 1966-12-06 Raymond P Sandor Method and apparatus for installing fasteners
DE1752155A1 (en) * 1968-04-10 1971-05-13 Hilti Ag Tool for tool holder for hammer drills
SE406952B (en) * 1973-02-21 1979-03-05 Durofac Kartro As DRILL, PREFERABLY FOR IMPACT DRILLING
DK165176A (en) * 1976-04-07 1977-10-08 M B Nielsen TOOL HOLDER AND TOOL SHAFT FOR USE IN CONNECTION
US4202557A (en) * 1976-05-15 1980-05-13 Hawera Probst Gmbh & Co. Drilling device
DE2809569A1 (en) * 1978-03-06 1979-09-20 Chris Eggers Jensen Tool assembly for mechanical or percussion drills - comprises take=up bore with spring-loaded locking ball, cylindrical spindle, and neoprene sheathing
AT371566B (en) * 1981-06-29 1983-07-11 Albert Berner Handelsgesellsch DRILL ROD OR DRILL FOR DRILLING HAMMER

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB812529A (en) * 1957-08-19 1959-04-29 Malcolm Wicks Fraser Improvements relating to rotary tool-holding chucks
GB1127474A (en) * 1967-03-22 1968-09-18 Erickson Tool Co Improvements in or relating to chucks
GB1448378A (en) * 1972-12-26 1976-09-08 Montabert Ets Tool-holding assemblies
GB1536738A (en) * 1975-11-14 1978-12-20 Bosch Gmbh Robert Rotary percussive apparatus
GB1566340A (en) * 1976-05-15 1980-04-30 Hawera Probst Kg Hartmetall Rotary percussion drilling devices
GB1587885A (en) * 1976-09-10 1981-04-08 Bosch Gmbh Robert Rotary tool holder
GB2096045A (en) * 1981-04-03 1982-10-13 Bosch Gmbh Robert A tool holder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2617753A1 (en) * 1987-07-07 1989-01-13 Stahl Joseph Multiple-use wood drill bit for experienced professionals and DIY enthusiasts

Also Published As

Publication number Publication date
NO854932L (en) 1986-06-09
PT81617A (en) 1986-01-01
EP0188083A1 (en) 1986-07-23
ES297055Y (en) 1989-07-01
GB2168270B (en) 1988-11-09
GR852941B (en) 1986-04-01
GB8431027D0 (en) 1985-01-16
DK558485A (en) 1986-06-08
ZA859294B (en) 1986-08-27
CA1263107A (en) 1989-11-21
DK558485D0 (en) 1985-12-02
PT81617B (en) 1987-09-18
US4920837A (en) 1990-05-01
ES297055U (en) 1988-12-16
FI854824A (en) 1986-06-08
FI854824A0 (en) 1985-12-05
GB8529840D0 (en) 1986-01-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee